Window-fastener for ventilation.



PATENTED MAR. 28, 1905. L. G. GANNON & U. K. MORRIS. WINDOW FASTENER FORVENTILATION.-

APPLICATION FILED JUNE 20, 1904.

UNTTED STATES Patented March 28, 1905.

PATENT OFFICE.

LUELLA C. CANNON AND CHARLES K. MORRIS, OF CHICAGO, ILLINOIS.

WINDOW-FASTENER FOR VENTILATION.

SPECIFICATION forming part of Letters Patent No. 785,710, dated March28, 1905.

Application filed June 20, 1904:. Serial No. 213.425.

To all whom it 7TbCby concern:

Be it known that we, LUELLA C. CANNON and CHARLES K. MORRIS, citizens ofthe United States, and residents of Chicago, in the county of Cook andState of Illinois, (whose address is 388 La Salle avenue, Chicago,) haveinvented a new and Improved IVindow-Fastener for Ventilation Purposes,of which the following is a clear and exact description.

The object of the invention is to provide means for looking or securinga window which has been left partly open for the purpose of ventilation;and it consists in a novel construction and arrangement of partshereinafter described and claimed. reference being bad to theaccompanying drawings, in which similar reference characters indicatecorresponding parts.

In said drawings, Figure 1 is a perspective view of the fastener,showingthe parts in inoperative position; and Fig. 2 is a like viewshowing the parts in operative position. Fig. 3 is a rear view of thefastener. Fig. 4 is a perspective view of the base-plate with thehorizontally-swinging leaf removed, also the latch hereinafterdescribed. Fig. 5 is a perspective view of the leaf. Fig. 6 is aperspective view of a portion of a window, showing the fastener inplace.

Referring specifically to the drawings, A represents a base-plate, whichis made of suit able metal and has countersunk holes D at its respectiveends for attachment by screws or other suitable fastening means. Thebaseplate is cut away on one side to receive the obstructing part orleaf B, said leaf being provid ed at opposite ends with pins F, whichare fitted in sockets Gr,- formed at opposite ends of the recess in thebase-plate. The leaf B swings in a horizontal plane and operates tofasten the window in a manner to be hereinafter described.

At C is indicated a latch-pin, which is pivoted in a hole L made in thebase-plate. The said latch-pin is for the purpose of holding the leaf Bin inoperative positionby extending it over the face thereof, as shownin Fig. 1. Upon raising the latch-pin, as shown in dotted lines, itclears the leaf and permits it to be swung outwardly, after which thelatch-pin drops back behind the leaf and holds it open. The base-plateis cut away, as at E, to an extent equal the diameter of the latch-pin,which is thus flush with the base-plate. The leaf is also cut away, asat K, for the same purpose. The leaf is of the same thickness as thebaseplate, so that when it is swung into inoperative position it isflush with the latter. Both plates are sufficiently thin to permit thesashes to pass without interference.

The operation of the fastener is shown in Fig. 6, in which one of such(indicated at H) is shown fastened to the upper window-sash at a pointabove the bottom thereof. Upon swinging out the leaf B at right anglesto the lower sash it prevents the upper sash from being lowered fartherthan the point at which the leaf strikes the top of the lower sash. Ifthe upper sash is closed, the lower sash cannot be raised farther thanthe distance between its top and the leaf. It will be seen, therefore,that both sashes can be opened a predetermined distance, depending onthe location of the fastener, and both are securely fastened againstfurther opening. The sashes can be raised or lowered to their fullextent by swinging back the leaf out of the way of the sash,

as heretofore described. To further secure the window, one of thedevices is fastened to the window-casing adjacent to the lower sash. asshown at J in Fig. 6, so that when the leaf is swung outwardly itengages the top of said sash. This prevents the lower sash from beingraised at all.

The device is simple in construction and can therefore be cheaply madeand sold. It is readily fastened without marring the window and wellserves the purpose for which it is intended.

Having thus described our invention, what we claim as new, and desire tobe secured by Letters Patent, is

1. The combination with a window, of a fastener comprising a base-plate,a leaf hinged thereto and swinging in a horizontal plane into and out ofthe path of the window, and a latch for holding the leaf in eitherposition.

2. The combination with awindow, of a fastener comprising a base-platehavinga recess on one side, a leaf hinged in said recess and swinging ina horizontal plane into and out of the path of the Window, and a latchpivoted to 5 the base-plate for holding the leaf in either position.

In testimony whereof We have signed our names to this specification inthe presence of two subscribing Witnesses.

LUELLA C. CANNON. CHARLES 'K. MORRIS. Witnesses:

M. SALMoNsoN, CHRISTIAN LINK.

